545  
WHUS73 KMKX 040323  
MWWMKX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
923 PM CST WED DEC 3 2025  
 
LMZ261-362-364-366-563-565-041130-  
/O.CON.KMKX.GL.W.0034.251205T0300Z-251205T1500Z/  
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE  
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH  
FOX ISLAND 5NM OFFSHORE-  
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI 5NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5NM OFFSHORE TO  
MID LAKE-  
923 PM CST WED DEC 3 2025  
 
...GALE WARNING REMAINS IN EFFECT FROM 9 PM THURSDAY TO 9 AM CST  
FRIDAY...  
 
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND  
WAVES 7 TO 12 FT EXPECTED.  
 
* WHERE...NORTHERN THIRD OF THE OPEN WATERS OF LAKE MICHIGAN,  
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5NM OFFSHORE TO  
MID LAKE, AND LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI  
5NM OFFSHORE TO MID LAKE.  
 
* WHEN...FROM 9 PM THURSDAY TO 9 AM CST FRIDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR SEVERE CONDITIONS.  
 

 
 

 
 
LMZ643>646-041130-  
/O.CON.KMKX.SC.Y.0105.000000T0000Z-251204T1200Z/  
SHEBOYGAN TO PORT WASHINGTON WI-  
PORT WASHINGTON TO NORTH POINT LIGHT WI-  
NORTH POINT LIGHT TO WIND POINT WI-  
WIND POINT WI TO WINTHROP HARBOR IL-  
923 PM CST WED DEC 3 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST  
THURSDAY...  
 
* WHAT...NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
 
* WHERE...NEARSHORE WATERS FROM SHEBOYGAN TO WINTHROP HARBOR IL.  
 
* WHEN...UNTIL 6 AM CST THURSDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
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